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6884180 Self-recording golf ball, golf ball cup, and reading device system  
The present invention provides a self-recording golf ball having an inner core defined by an outer cover, said golf ball further comprising a microprocessor, a power source, a receive and transmit...
6447408 Ocular enhancement training system  
The present invention is a method for training a player of a game in which an object is projected towards the player at a normal velocity range. Depending on the application of the training method,...
5335212 Golf clock  
Disclosed is a golf clock and a control system using such clock to control the timing of play of golfers on a golf course. The golf clock has a first digital display programmed to indicate a total...
Matches 1 - 3 out of 3